Divided attention impairments after traumatic brain injury

Park, Norman W.; Moscovitch, Morris; Robertson, Ian H.

doi:10.1016/s0028-3932(99)00034-2

Cited by 104 publications

(70 citation statements)

References 35 publications

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“…This finding is in accordance with other studies proposing that subjective fatigue after TBI and stroke correlates with poor performance on single tests for attention and processing speed (Ziino and Ponsford, 2006a,b; Belmont et al., 2009; Azouvi et al., 2004; Ashman et al., 2008; Johansson et al., 2009; Park et al., 1999; Ponsford et al., 2011; Johansson & Rönnbäck, 2012). However, it is difficult to determine whether the impairment in cognitive function is due to fatigue or the injury per se or a combination of the two.…”

Section: Discussionmentioning

confidence: 99%

“…Azouvi and co‐authors proposed that mentally‐tiring activities after brain injury are attributable to reduced resources and that patients who have sustained a brain injury also describe mental activity as more energy demanding than healthy people (Azouvi et al., 2004). In an assessment of decreased cognitive function combined with mental fatigue, it has been proposed that subjective fatigue after TBI or mild TBI correlates with poor performance in attention tests and reduced processing speed (Ziino and Ponsford, 2006a,b; Belmont et al., 2009; Azouvi et al., 2004; Ashman et al., 2008; Johansson, Berglund, & Rönnbäck, 2009; Park, Moscovich, & Robertson, 1999; Ponsford, Cameron, Fitzgerald, Grant, & Mikocka‐Walus, 2011). A group of individuals who had sustained a TBI performed more slowly on a complex attention test, made more errors, and reported a higher level of subjective fatigue (Ziino and Ponsford, 2006a).…”

Section: Introductionmentioning

confidence: 99%

“…Their performance was slower, but remained on the same level during a vigilance test (Ziino and Ponsford, 2006b). Moreover, a simultaneous load on working memory requiring total control of the situation was more tiring for TBI subjects than an automatic activity (Park et al., 1999). After a severe TBI, subjects showed an increase in reaction time during a dual‐task activity, and they reported an increase in subjective mental effort (Azouvi et al., 2004).…”

Section: Introductionmentioning

confidence: 99%

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Mental fatigue and impaired cognitive function after an acquired brain injury

et al. 2018

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ObjectiveMental fatigue is a common subjective symptom following an acquired brain injury. In many cases, this is long‐lasting with a considerable negative impact on work, studies, social activities, and quality of life. No objective test for mental fatigue exists today. The aim of this study was to investigate whether mental fatigue can be objectively measured.Materials and MethodsThis study included 32 controls with no mental fatigue and 42 well‐rehabilitated participants who suffered from long‐term mental fatigue following stroke, traumatic brain injury, encephalitis or meningitis, and late effects after brain tumor. Attention, processing speed and working memory were assessed using a test and retest design following a demanding reading exercise.ResultsSignificant interactions were found for tests measuring processing speed, working memory, and attention. The control group improved at the second test, while those who suffered from mental fatigue did not.ConclusionsThis study indicates impaired cognitive performance over time after cognitive activity for individuals suffering from mental fatigue after an acquired brain injury.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mental fatigue and impaired cognitive function after an acquired brain injury

et al. 2018

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“…Furthermore, practice increased the response speed over time for controls, while this was not the case for subjects with mental fatigue after TBI [46]. Moreover, a simultaneous load on working memory that demands total control of the situation was more tiring for TBI subjects than an automatic activity [47]. In a study by Ponsford and co-authors, 37% of well-rehabilitated mild TBI victims performed less well than controls on a visual memory test and also reported problems with fatigue three months after the TBI [48].…”

Section: Mfs and Cognitive Functioningmentioning

confidence: 92%

Evaluation of the Mental Fatigue Scale and its relation to Cognitive and Emotional Functioning after Traumatic Brain Injury or Stroke

Johansson¹

2013

Int J Phys Med Rehabil

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Objective: After traumatic brain injury (TBI) or stroke, long-term mental fatigue may occur with significant impact on work and social interactions. With the intention to measure mental fatigue irrespective of neurological illness, we developed the Mental Fatigue Scale (MFS). The scale incorporates affective, cognitive and sensory symptoms, duration of sleep and daytime variation in symptom severity. In this study, we evaluated the MFS and its relationship to cognitive and emotional functions.Participants: Healthy controls and well-rehabilitated subjects suffering from mental fatigue after mild TBI, TBI or stroke (age 19-69) were included in the study.Results: The results showed MFS to be invariant to age, gender and education. A cutoff score at 10.5 is suggested. Of the cognitive functions measured, information processing speed was found to be a significant predictor for the rating on MFS. We found that a significant effect on depression between controls and brain injured subjects can be a misleading conclusion if the effect of mental fatigue is not considered.Conclusions: We suggest MFS to be linked to mental impairment after brain injury. This study also demonstrated that mental fatigue must be treated as a separate construct and should not be mixed up with depression or anxiety.

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“…Furthermore, practice increased the response speed for controls across time, while a lack of effect was found for subjects with mental fatigue after TBI (Ashman et al, 2008). Moreover, a simultaneous load on working memory that demands total control of the situation was more tiring than an automatic activity for TBI subjects (Park, Moscovich, & Robertson, 1999). Thumb pressing was used as an objective test of processing speed and the findings correlated with subjective fatigue (D. L. Lachapelle & Finlayson, 1998).…”

Section: Mental Fatigue and Cognitive Functionsmentioning

confidence: 99%